Pump-strainer



(No Model.)

S. W. MARTIN. PUMP STRAINER.

No.254,352. Patented Feb. 28,1882.

IT 29- I a C Q Hi I, 1! Q [ill I 1. I g 2. r Q

UNITED STATES PATENT ()FFICE.

SAMUEL W. MARTIN, OF SPRINGFIELD, OHIO.

PUMP-STRAINER.

SPECIFICATION forming part of Letters Patent No. 254,352, dated February28, 1882.

Application filed December 27, 1881. (No model.)

To all whom it may concern:

Be it known that I, SAMUEL W. IVIARTIN, of Springfield, in the county ofClarke and State of- Ohio, have invented certain Improvements inPump-Strainers, of which the following is a specification.

This invention relates to a strainer designed for application to thelower end of the suction or supply pipe of pumps, more particularly thatclass of pumps which is employed for domestic purposes.

The inventionconsists in a body consisting of two equal perforatedsections united by means of a bolt, and adapted to be held around thelower end of the suction-pipe by friction. Heretofore strainers havebeen constructed in many different forms for use upon the suctionpipe,the usual custom being to cast them in one piece of cylindrical form,and subsequently drill the holes therein, connecting them to the lowerend of the pipe by means of a screwthrcad. This construction involvedconsiderable expense, and necessitated the cutting of a thread upon thelower end of the pipe, renderingit'impossible for the farmer or otherperson unprovided with tools to apply the strainer. In practice it isfound desirable to provide a device which will admit of the purchasercutting the suction-pipe to a proper length to suit the well, and thenapplying the strainer without trouble and without the employment ofskilled workmen.

Referringto the accompanying drawings, Figure 1 represents a perspectiveView of my device in position for use. Fig. 2 is a vertical sectionthrough the center of the same; Fig. 3, a perspective view of one of thehalves or sections of the body.

A represents the suction-pipe of the pump, and B the perforated strainerapplied thereto. As plainly represented in the drawings, the strainerconsists of two equal semi-cylindrical sections, which, when fittedtogether, form a cylindrical perforated body closed at the lower end. Inthe drawings the strainer is represented with four vertical rows orseries of openings, two of which rows are formed by casting notches orindentations in the body-sec. tions in such manner that when thesections are joined together the notches will register and form roundopenings. This construction is advantageous for the reason that itpermits the parts to be cast readily and accurately,

and without difficulty in the employment of the cores.

0 represents the transverse bolt passing through and uniting the twoparts or sections, and serving to hold them together and compress themfirmly around and against the lower end of the pipe A.

The body sections are preferably constructed with internal flanges toregulate their position when applied to the pipe, and with internallips, I), at their edges, to retain them in the proper relativeposition.

If desired, the sections may be given a slight longitudinal curvature,so that when drawn together by means of the bolt they will combinearound the pipe with an elastic or spring pressure, whereby they will becaused to engage the more firmly thereon.

The form or configuration of the parts and the minor details may bemodified to any extent desired, provided the general mode ofconstruction and application is not departed from.

While it is preferred to make use of the bolt as a means of uniting thebody-sections, it is obvious that a rivet or ring driven over theoutside, or any equivalent fastening device, may beemployed.

Having thus described my invention, what I claim is-- l. Asa new articleof manufacture, the pump -strainer consisting of the perforatedbody-sections united by a bolt or equivalent fastening device.

2. In combination'with the pipe A, the divided strainer and the bolt orits equivalent, whereby the strainer is secured to the pipe byfrictional contact.

3. The improved pump -strainer, consisting of the body-sections havingtheir edges ser rated to form openings when united, substantially asdescribed and shown.

4. The perforated body-sections, provided

